1. Central Laboratory and Vaccination Centre; Klinikum Würzburg Mitte; Standort Juliusspital; Würzburg Germany
2. NZOZ Vitamed; Bydgoszcz Poland
3. Faculty of Medicine and Health Sciences; University of Zielona Gora; Zielona Gora Poland
4. Department of Preventive Medicine; Poznan University of Medical Sciences; Poznan Poland
5. Department of Gynecology; Charité-Universitätsmedizin Berlin; Berlin Germany
6. GSK; Rixensart Belgium
7. GSK; Bangalore India
8. GSK; Wavre Belgium